PULMNasdaqPharmaceutical PreparationsFiscal year ends December 31
Pulmatrix, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$1.42+0.06 (+4.41%)
Close on Oct 19, 2026
- Market cap
- $5.19M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
9.2%
0M of 4M shares
Institutional holders
15
2 new, 2 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| RCM Eos PIPE HOLDINGS, LLC | 405,358 | 9.99% | 13D (active) | Apr 16, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of PULM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 122,698 | 3.36% | $208.59K | +13,550 | 0.00% |
| BlackRock, Inc. | 54,899 | 1.50% | $93.33K | – | 0.00% |
| Geode Capital Management, LLC | 33,299 | 0.91% | $56.63K | −11,330 | 0.00% |
| Vanguard Capital Management LLC | 32,294 | 0.88% | $54.90K | −1,300 | 0.00% |
| SBI Securities Co., Ltd. | 31,285 | 0.86% | $53.19K | +1,200 | 0.00% |
| Shay Capital LLC | 18,857 | 0.52% | $32.06K | New | 0.00% |
| Vanguard Fiduciary Trust Co | 14,715 | 0.40% | $25.02K | – | 0.00% |
| State Street Corp | 13,945 | 0.38% | $23.71K | – | 0.00% |
| XTX Topco Ltd | 11,991 | 0.33% | $20.39K | −1,678 | 0.00% |
| UBS Group AG | 515 | 0.01% | $875 | +492 | 0.00% |
| Barclays PLC | 15 | 0.00% | $26 | New | 0.00% |
| Farther Finance Advisors, LLC | 7 | 0.00% | $12 | – | 0.00% |
| Royal Bank of Canada | 7 | 0.00% | $0 | – | 0.00% |
| Allworth Financial LP | 3 | 0.00% | $6 | – | 0.00% |
| Northwestern Mutual Wealth Management Co | 1 | 0.00% | $2 | – | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 15 | 0M | 9.2% | 2 / 3 | 3 / 2 | 0M | 0M |
| Q1 2026 | 15 | 0M | 9.0% | 5 / 2 | 4 / 4 | 0M | 0M |
| Q4 2025 | 15 | 0M | 9.8% | 3 / 1 | 6 / 2 | 0M | 0M |
| Q3 2025 | 14 | 0M | 9.5% | 4 / 3 | 4 / 2 | 0M | 0M |
| Q2 2025 | 12 | 0M | 9.2% | 2 / 7 | 1 / 1 | 0M | 0M |
| Q1 2025 | 11 | 0M | 8.6% | 1 / 4 | 3 / 1 | 0M | 0M |
| Q4 2024 | 11 | 0M | 8.9% | 2 / 2 | 3 / 3 | 0M | 0M |
| Q3 2024 | 12 | 0M | 7.2% | 3 / 3 | 3 / 1 | 0M | 0M |
| Q2 2024 | 11 | 0M | 6.9% | 2 / 2 | 3 / 4 | 0M | 0M |
| Q1 2024 | 13 | 0M | 6.8% | 2 / 3 | 3 / 1 | 0M | 0M |
| Q4 2023 | 12 | 0M | 8.3% | 0 / 6 | 2 / 0 | 0M | 0M |
| Q3 2023 | 12 | 0M | 10.5% | 0 / 7 | 1 / 2 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of PULM | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Extended Market Index Fund | 32,294 | 0.88% | $54.90K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 23,014 | 0.63% | $31.99K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 5,228 | 0.14% | $7.27K | 0.00% | May 31, 2026 |
| Fidelity Nasdaq Composite Index Fund | 4,570 | 0.13% | $6.35K | 0.00% | May 31, 2026 |
| Fidelity Total Market Index Fund | 4,427 | 0.12% | $6.15K | 0.00% | May 31, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +15,007 | – | – | 67,729 |
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +769,989 | – | – | 3,468,190 |
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +6,478 | – | – | 29,178 |
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +7,700 | – | – | 34,587 |
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +345,551 | – | – | 1,556,676 |
| Polaris Venture Management Co. V, L.L.C. 10% owner | Apr 3, 2018 | Buy | +5,275 | – | – | 23,875 |
| Matthew L. Sherman Director | Apr 3, 2018 | Buy | +20,000 | – | – | 20,000 |
| ARCH Venture Partners VII, L.P. – | Apr 3, 2018 | Buy | +1,150,000 | – | – | 3,436,456 |
| Mark T. Iwicki Director | Apr 3, 2018 | Buy | +307,000 | – | – | 307,000 |
| David L. Hava Chief Scientific Officer | Mar 22, 2017 | Option exercise | +2,263 | $2.21 | $5.00K | 2,263 |
| Robert W. Clarke Chief Executive Officer, Director | Mar 22, 2017 | Option exercise | +4,525 | $2.21 | $10.00K | 4,525 |
| Oculus Innovative Sciences, Inc. 10% owner | Jun 17, 2015 | Sale | −922,500 | $2.75 | $2.54M | 0 |
| Oculus Innovative Sciences, Inc. 10% owner | Jun 16, 2015 | Sale | −727,500 | $2.75 | $2.00M | 922,500 |
| David Maki Director | Jun 16, 2015 | Buy | +36,375 | $6.88 | $250.26K | 218,194 |
| David Maki Director | Jun 16, 2015 | Buy | +36,375 | $6.88 | $250.26K | 218,194 |
| Scott M. Rocklage Director | Jun 16, 2015 | Buy | +33,990 | $6.88 | $233.85K | 1,192,154 |
| Scott M. Rocklage Director | Jun 16, 2015 | Buy | +4,815 | $6.88 | $33.13K | 168,873 |
| Keith Crandell 10% owner | Jun 16, 2015 | Buy | +72,750 | $6.88 | $500.52K | 2,286,456 |
| Polaris Venture Partners V, L.P. 10% owner | Jun 15, 2015 | Buy | +1,392 | $6.88 | $9.58K | 52,722 |
| Polaris Venture Partners V, L.P. 10% owner | Jun 15, 2015 | Buy | +715 | $6.88 | $4.92K | 26,887 |
| Polaris Venture Partners V, L.P. 10% owner | Jun 15, 2015 | Buy | +490 | $6.88 | $3.37K | 18,600 |
| Polaris Venture Partners V, L.P. 10% owner | Jun 15, 2015 | Buy | +71,439 | $6.88 | $491.50K | 2,698,201 |
| David L. Hava Chief Scientific Officer | Jun 15, 2015 | Award | +4,863 | – | – | 4,863 |
| David Maki Director | Jun 15, 2015 | Award | +181,819 | – | – | 181,819 |
| David Maki Director | Jun 15, 2015 | Award | +181,819 | – | – | 181,819 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +1,179,066 | – | – | 1,179,066 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +32,059 | $6.88 | $220.57K | 1,211,125 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +489 | $6.88 | $3.36K | 18,599 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +26,172 | – | – | 26,172 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +1,392 | $6.88 | $9.58K | 52,692 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +18,110 | – | – | 18,110 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +71,438 | $6.88 | $491.49K | 2,698,200 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +2,626,762 | – | – | 2,626,762 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +601 | $6.88 | $4.13K | 22,700 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +22,099 | – | – | 22,099 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Buy | +714 | $6.88 | $4.91K | 26,886 |
| Venture Partners Iv Lp Polaris 10% owner | Jun 15, 2015 | Award | +51,330 | – | – | 51,330 |
| Robert W. Clarke Chief Executive Officer, Director | Jun 15, 2015 | Award | +18,667 | – | – | 18,667 |
| Scott M. Rocklage Director | Jun 15, 2015 | Award | +164,058 | – | – | 164,058 |
| Scott M. Rocklage Director | Jun 15, 2015 | Award | +1,158,164 | – | – | 1,158,164 |
| Keith Crandell 10% owner | Jun 15, 2015 | Award | +2,213,706 | – | – | 2,213,706 |
| Oculus Innovative Sciences, Inc. 10% owner | Mar 23, 2015 | Sale | −350,000 | $2.75 | $962.50K | 1,650,000 |
| Gregory M. French Director | May 11, 2014 | Award | +58,000 | – | – | 58,000 |
| Richard K. Conley Director | May 11, 2014 | Award | +58,000 | – | – | 58,000 |
| Hojabr Alimi CEO and Chief Science Officer, Director | May 11, 2014 | Award | +125,000 | – | – | 125,000 |
| Sameer Harish Chief Financial Officer | May 11, 2014 | Award | +74,600 | – | – | 74,600 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.